The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 08, 2011

Filed:

Mar. 24, 2009
Applicants:

Katsuaki Matsui, Kanagawa, JP;

Junichi Ogane, Tokyo, JP;

Inventors:

Katsuaki Matsui, Kanagawa, JP;

Junichi Ogane, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor memory cell device includes a first multiplexer selecting a sub-block including a memory cell storing data to be read out in a row, a drain selector selecting a first column line connected to one terminal of the memory cell to be read, a precharge selector selecting a second column line connected to the other terminal of the memory cells adjacent to the one terminal of the memory cell storing the data to be readout, a second multiplexer selecting the sub-block including the second column line, a source selector selecting a third column line connected to the other terminal of the memory cell storing the data to be read out. The second multiplexer and precharge selector, when selecting, apply a first voltage to the second column line, and the source selector, when selecting, applies a second voltage to the third column line.


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